It all depends on how much money is available for stupid excessive spending, then factor in how many cylinders one is in the market for, multiplied by how many available garage slots there are.

4c Alfa Romeo 4C
Lotus Exige S 240

6c Ford GT
Ferrari soon to be released new Dino series

8c Chevy Corvette Z06
Ferrari 458 Speciale or 488GTB
McLaren 650S

10c Lamborghini Huracan
Audi R8 V10plus

12c Lamborghini Aventador
Ferrari F12

If I had a spare 5 mill and 11 garage slots. My garage would look a lil something like that

-Hoot